Patents by Inventor Chih-Hsuan Lo

Chih-Hsuan Lo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11169015
    Abstract: A liquid level sensor and a method for sensing a liquid level adapted to a liquid storage container are provided. The liquid level sensor includes a plurality of sensing electrodes and a liquid level determination circuit. The sensing electrodes are disposed on a side wall of the liquid storage container and correspond to different liquid levels. The liquid level determination circuit is coupled to the sensing electrodes and stores a plurality of capacitance reference values and a plurality of capacitance threshold values in response to a tuning command received from a host during factory calibration. The capacitance reference values are locked after the factory calibration. After the factory calibration, the liquid level determination circuit scans capacitance values of the sensing electrodes to determine a liquid level of a liquid in the liquid storage container based on current capacitance values of the sensing electrodes.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: November 9, 2021
    Assignee: ITE Tech. Inc.
    Inventor: Chih-Hsuan Lo
  • Publication number: 20210331287
    Abstract: A grinding and polishing simulation method, a grinding and polishing simulation system and a grinding and polishing process transferring method. The grinding and polishing simulation method includes the following steps. A sensing information of a grinding and polishing apparatus when grinding or polishing a workpiece is obtained. A plurality of model parameters is identified according to the sensing information. At least one quality parameter is calculated according to a machining path, a plurality of process parameters and the plurality of model parameters.
    Type: Application
    Filed: December 28, 2020
    Publication date: October 28, 2021
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yuan-Chieh LO, Yu-Hsun WANG, Pei-Chun LIN, Chih-Hsuan SHIH, Shu HUANG
  • Publication number: 20210335616
    Abstract: A semiconductor device includes: a fin structure disposed on a substrate; a gate feature that traverses the fin structure to overlay a central portion of the fin structure; a pair of source/drain features, along the fin structure, that are disposed at respective sides of the gate feature; and a plurality of contact structures that are formed of tungsten, wherein a gate electrode of the gate feature and the pair of source/drain features are each directly coupled to a respective one of the plurality of contact structures.
    Type: Application
    Filed: July 8, 2021
    Publication date: October 28, 2021
    Inventors: Hong-Ying LIN, Cheng-Yi WU, Alan TU, Chung-Liang CHENG, Li-Hsuan CHU, Ethan HSIAO, Hui-Lin SUNG, Sz-Yuan HUNG, Sheng-Yung LO, C.W. CHIU, Chih-Wei HSIEH, Chin-Szu LEE
  • Publication number: 20210207989
    Abstract: A liquid level sensor and a method for sensing a liquid level adapted to a liquid storage container are provided. The liquid level sensor includes a plurality of sensing electrodes and a liquid level determination circuit. The sensing electrodes are disposed on a side wall of the liquid storage container and correspond to different liquid levels. The liquid level determination circuit is coupled to the sensing electrodes and stores a plurality of capacitance reference values and a plurality of capacitance threshold values in response to a tuning command received from a host during factory calibration. The capacitance reference values are locked after the factory calibration. After the factory calibration, the liquid level determination circuit scans capacitance values of the sensing electrodes to determine a liquid level of a liquid in the liquid storage container based on current capacitance values of the sensing electrodes.
    Type: Application
    Filed: February 11, 2020
    Publication date: July 8, 2021
    Applicant: ITE Tech. Inc.
    Inventor: Chih-Hsuan Lo
  • Patent number: 10921933
    Abstract: A touch detection apparatus and a touch detection method are provided. The touch detection apparatus includes a sensing element and a detection circuit. The touch detection method includes the following steps. At least one touch sensing value is provided by the sensing element. Whether a first object touches the sensing element is determined by the detection circuit according to the at least one touch sensing value and a first reference value in a first stage. If the first object touches the sensing element, a second reference value is calculated by the detection circuit according to the at least one touch sensing value and the detection circuit enters a second stage. Whether a second object touches the first object is determined by the detection circuit according to the at least one touch sensing value and the second reference value in the second stage.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: February 16, 2021
    Assignee: ITE Tech. Inc.
    Inventors: Chih-Hsuan Lo, Chia-Shen Hsu
  • Publication number: 20210019013
    Abstract: A touch detection apparatus and a touch detection method are provided. The touch detection apparatus includes a sensing element and a detection circuit. The touch detection method includes the following steps. At least one touch sensing value is provided by the sensing element. Whether a first object touches the sensing element is determined by the detection circuit according to the at least one touch sensing value and a first reference value in a first stage. If the first object touches the sensing element, a second reference value is calculated by the detection circuit according to the at least one touch sensing value and the detection circuit enters a second stage. Whether a second object touches the first object is determined by the detection circuit according to the at least one touch sensing value and the second reference value in the second stage.
    Type: Application
    Filed: October 7, 2019
    Publication date: January 21, 2021
    Applicant: ITE Tech. Inc.
    Inventors: Chih-Hsuan Lo, Chia-Shen Hsu
  • Publication number: 20180058896
    Abstract: A liquid level sensor and a method for sensing a liquid level adapted to a liquid storage container are provided. The liquid level sensor includes a plurality of sensing electrodes and a liquid level determining circuit. The sensing electrodes are arranged on a side wall of the liquid storage container, and correspond to different liquid levels. The liquid level determining circuit is coupled to the sensing electrodes, and scans capacitance values of the sensing electrodes, so as to determine a liquid level of a liquid in the liquid storage container based on the current capacitance values of the sensing electrodes.
    Type: Application
    Filed: October 18, 2016
    Publication date: March 1, 2018
    Applicant: ITE Tech. Inc.
    Inventor: Chih-Hsuan Lo
  • Patent number: 9903748
    Abstract: A liquid level sensor and a method for sensing a liquid level adapated to a liquid storage container are provided. The liquid level sensor includes a pluraity of sensing electrodes and a liquid level determining circuit. The sensing electrodes are arranged on a side wall of the liquid storage container, and correspond to different liquid levels. The liquid level determining circuit is coupled to the sensing electrodes, and scans capacitance values of the sensing electrodes, so as to determine a liquid level of a liquid in the liquid storage container based on the current capacitance values of the sensing electrodes.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: February 27, 2018
    Assignee: ITE Tech. Inc.
    Inventor: Chih-Hsuan Lo
  • Publication number: 20140333369
    Abstract: A key module and a signal generating method of the key module are provided. The key module is suitable for an electronic device, the electronic device has a processing system, and the key module includes a detecting module and a controller. The detecting module includes a main electrode conductor and an assisting electrode conductor, where the assisting electrode conductor is disposed around the main electrode conductor. The controller is coupled to the main electrode conductor and the assisting electrode conductor. When the controller determines that a touch is detected by the main electrode conductor, but not detected by the assisting electrode conductor, the controller transmits a key signal to the processing system.
    Type: Application
    Filed: February 10, 2014
    Publication date: November 13, 2014
    Applicant: ITE Tech. Inc.
    Inventor: Chih-Hsuan Lo